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Underdamped quantum ratchets

Denisov S, Kohler S, Hanggi P
Europhys Lett 85, 40003 (2009)
We investigate the quantum ratchet effect under the influence of weak dissipation which we treat within a Floquet-Markov master equation approach. A ratchet current emerges when all relevant symmetries are violated. Using time-reversal symmetric driving we predict a purely dissipation-induced quantum ratchet current. This directed quantum transport results from bath-induced superpositions of non-transporting Floquet states.
arXiv

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last modified on Monday, 14-Feb-2022 14:09:58 UTC by Sergey Denisov